<template>
    <div class="login_container">
        <div class="login_box">
            <div class="avatar-box">
                <img src="../assets/login.png" alt="图片不见了">
            </div>
            <!-- 表单登录区域 -->
            <!-- 用户 -->
            <el-form ref=loginFormRef :model="loginForm" :rules="loginRules" class="login_form">
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-yonghu"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-mima"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>
<script>
export default {
    data(){
        return{
            // 登录表单数据
            loginForm:{
                username:'',
                password:''
            },
            // 表单的验证规则对象
            loginRules:{
                // 验证用户是否合法
                username:[ 
                    {required: true, message: '请输入用户名', trigger: 'blur'},
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                // 验证密码是否合法
                password:[
                    {required: true, message: '请输入密码', trigger: 'blur'},
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods:{
        // 重置表单
        resetLoginForm(){
            this.$refs.loginFormRef.resetFields();
        },
        // 预认证
        login(){
            this.$refs.loginFormRef.validate(async valid=>{
                if(!valid)return;
                const {data}= await this.axios.post('/login',this.qs.stringify(this.loginForm));
                if(data.status!==200) return this.$message.error('登录失败');
                this.$message.success('登录成功');
                // 把获取到的token存储到客户端
                window.sessionStorage.setItem('token',data.mate[0].token);
                this.$router.push('/home');
            });
        }
    }
}
</script>
<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    .avatar-box{
        height: 130px;
        width: 130px;
        border: 1px solid #eee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%,-50%);
        background-color: #fff;
        img{
            height: 100%;
            width: 100%;
            border-radius: 50%;
        }
    }
    .login_form{
        position: absolute;
        bottom: 10px;
        width: 100%;
        padding: 0 20px;
        box-sizing: border-box;
        .btns{
        display: flex;
        justify-content: flex-end;
    }
    }
    
}
</style>